Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform
Epoxy adhesives have extensive applications in the aerospace industry. In this study, the curing behaviour of preimpregnated epoxy adhesive was monitored using guided ultrasonic Lamb waves. These waves were excited and recorded using ultrasonic transducers. This study aims to analyze the recorded La...
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2024
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| Online Access: | https://hdl.handle.net/11073/25816 |
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| _version_ | 1864513440232505344 |
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| author | Zakharia, Michel |
| author2 | Harb, Mohammad |
| author2_role | author |
| author_facet | Zakharia, Michel Harb, Mohammad |
| author_role | author |
| dc.creator.none.fl_str_mv | Zakharia, Michel Harb, Mohammad |
| dc.date.none.fl_str_mv | 2024-11 2025-01-28T12:32:17Z 2025-01-28T12:32:17Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Zakharia, M., & Harb, M. (2025, January 23). Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform. https://doi.org/10.5281/zenodo.14726033 https://hdl.handle.net/11073/25816 10.5281/zenodo.14726033 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | American University of Sharjah |
| dc.relation.none.fl_str_mv | 8th International Conference on Smart Materials & Nanotechnology in Engineering (SMN2024) https://doi.org/10.5281/zenodo.14726033 |
| dc.rights.none.fl_str_mv | Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| dc.subject.none.fl_str_mv | Cure monitoring Degree of cure Lamb waves Signal processing Discrete Wavelet transform |
| dc.title.none.fl_str_mv | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Epoxy adhesives have extensive applications in the aerospace industry. In this study, the curing behaviour of preimpregnated epoxy adhesive was monitored using guided ultrasonic Lamb waves. These waves were excited and recorded using ultrasonic transducers. This study aims to analyze the recorded Lamb wave data using the discrete wavelet transform (DWT). A 5-level DWT was performed on the recorded ultrasonic signals. The approximation and detail coefficients of the signals were analyzed to extract the evolution of the degree of cure (DOC) as a function of time. The results were then validated using differential scanning calorimetry (DSC). The results have shown that the DOC obtained from the DWT matches the one obtained using DSC. This method was able to detect the start time and end time of the curing process. The correlation between the two DOCs was found to be R2 = 0.68 indicating that ultrasonic Lamb waves can be used as a real time monitoring method for the degree of cure of a material during the manufacturing process. |
| format | article |
| id | aus_787b1385f3cf88cd564dcb0b3d124cc3 |
| identifier_str_mv | Zakharia, M., & Harb, M. (2025, January 23). Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform. https://doi.org/10.5281/zenodo.14726033 10.5281/zenodo.14726033 |
| language_invalid_str_mv | en |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/25816 |
| publishDate | 2024 |
| publisher.none.fl_str_mv | American University of Sharjah |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| spelling | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet TransformZakharia, MichelHarb, MohammadCure monitoringDegree of cureLamb wavesSignal processingDiscrete Wavelet transformEpoxy adhesives have extensive applications in the aerospace industry. In this study, the curing behaviour of preimpregnated epoxy adhesive was monitored using guided ultrasonic Lamb waves. These waves were excited and recorded using ultrasonic transducers. This study aims to analyze the recorded Lamb wave data using the discrete wavelet transform (DWT). A 5-level DWT was performed on the recorded ultrasonic signals. The approximation and detail coefficients of the signals were analyzed to extract the evolution of the degree of cure (DOC) as a function of time. The results were then validated using differential scanning calorimetry (DSC). The results have shown that the DOC obtained from the DWT matches the one obtained using DSC. This method was able to detect the start time and end time of the curing process. The correlation between the two DOCs was found to be R2 = 0.68 indicating that ultrasonic Lamb waves can be used as a real time monitoring method for the degree of cure of a material during the manufacturing process.American University of Sharjah2025-01-28T12:32:17Z2025-01-28T12:32:17Z2024-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfZakharia, M., & Harb, M. (2025, January 23). Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform. https://doi.org/10.5281/zenodo.14726033https://hdl.handle.net/11073/2581610.5281/zenodo.14726033en8th International Conference on Smart Materials & Nanotechnology in Engineering (SMN2024)https://doi.org/10.5281/zenodo.14726033Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/oai:repository.aus.edu:11073/258162025-01-30T10:36:30Z |
| spellingShingle | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform Zakharia, Michel Cure monitoring Degree of cure Lamb waves Signal processing Discrete Wavelet transform |
| status_str | publishedVersion |
| title | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform |
| title_full | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform |
| title_fullStr | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform |
| title_full_unstemmed | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform |
| title_short | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform |
| title_sort | Cure Monitoring of Epoxy Structural Adhesion Using Lamb Waves and the Discrete Wavelet Transform |
| topic | Cure monitoring Degree of cure Lamb waves Signal processing Discrete Wavelet transform |
| url | https://hdl.handle.net/11073/25816 |